Jack-winder for yarn



w. I. BRENNAN IAcK wINoER Fon mu.

` A APPLICATION FILED MAR. II. 1920. y l 1,362,470. Patented Dec. 14,1920.-

2 SHEETS-SHEET I.

W. J. BRENNAN l JACK WINDR FOR YARN.

APPLICATION FILED MAR. II. 1920.

1,362,470. Patented Dee. 14,l 1920;,

` 2 SHEETS-SHEET 2. 129.2.

unirsi) STATES PATENT OFFICE.

JACK-WINDER FOR YARN.

lSpecification of Letters Patent.

Patented Dee. 1:4-, 1920.

Application led March 11, 1920. Serial No. 365,105.

To all whom t may concer-a.

Be it known that I, WILLIAM J. BRENNAN, a ci izen of the United States,resident of Danielson, in the county of TvVindhaIn and State ofConnecticut, have made a certain new and useful Invention inJack-VVnders for Yarn; and I declare the following to be a full, clear,and exact description of the same, such as will enable others skilled inthe art to which it appertains to make and use the invention, `referencebeing had to the accompanying drawings, and to letters or figures ofreference marked thereon, which form a part of this specification.

The invention has relation to jack winders for yarn used in weavingcloths, and it consists in the novel construction and combinations ofparts as hereinafter set forth.

ln jack winders to--day it is common to wind the yarn from the cones tothe jack spool, about forty cones to the spool, and then as a secondstep to run the forty yarn ends to the same number of bobbins and windthe yarn upon the bobbins, the latter all drivenat the same rate ofspeed from a common drive shaft, and in the operation stated the yarn isnot wound with an even tension upon the bobbins, ydue to the fact thatthe bobbins are rotated all at an even rate of speed as stated and theyarn coming from the jack spool is not sufficiently evenly tensioned,there being more or less variation in the tension of the various threadsof yarn coming from said spool. The .object of windingthe yarn from thecones to the jack spool is to obtain as nearly an even tension aspossible in the winding from the jack spool to the bobbins, vbut thistension is not sufliciently even as stated, and leads to faults in theweaving whereby' loose or upstanding loops are left in the cloth.

It is an object of this invention to evenly tension the winding of theyarn upon the bobbins and to eliminate the preliminary winding of theyarn upon the jack spool prior to winding upon the bobbin. Other objectsand advantages will appear.

ln the accompanying drawings illustrating the invention, Figure 1 is afront view of the invention; Fig. 2 is a central vertical sectionthrough one of the tension frames g. Fig. 3 is a detail fragmentary viewshowing the mounting of the tension adjusting roller, the roller beingshown in section, and

Fig. 4f is a detail cross-sectional view of the lower tension roller,with a section of yarn engaging the saine.

In these drawings the numeral 2 designates the bobbin table, having thedrive shaft 3, and belt connection l, with the bobbin spindles 5,thebobbins 6 having detachable clamp connection 7 with said spindles andbeing all driven at an even rate of speed.

The yarn is fed from the yarn cones 8 to the bobbins, each thread ofyarn first passing at.9 over the head of the operator through a hookedoverhead guide, 10, and therefrom passing downwardly over or along oneside of a tension-adjusting roller 11, and thence downwardly completely"around a lower tension roller 12, and thence downwardly and laterallythrough hooked guides 13 and 14, to the'bobbin.

The upper roller 11 and the lower roller 12 are provided withlongitudinal grooves l 15, which in the rotation of the rollers by thebobbin serve to slightly bite or grip the yarn threads to better controlthe tension thereof. Both of these rollers have lateral adjustment inbearings 16, the journal blocks of the rollers being movable in slots 17of said bearings whereby the tension exerted by the roller 12 upon theyarn may be varied as required by the yarn or of the weather.

.ln the passage of the yarn completely around the tension roller 12, itis necessary to avoid cutting ofthe yarn by the crossing thereof, and tothis' end, there is provided between the rollers 11 and 12, guidefingers 17 which engage each yarn thread and guide it to the roller 12,the latter having the, groove lthereof slightly inclined or spiral tocause the yarn to feed slightly endwise of the-roller as it passesaround the same whereby the portion of the yarn thread passing from theroller 12will be separated or vspaced from Vthe portion Aof the yarnthread passing to theyroller 12 from roller 11 and between the roller 12and the guides 13 a second series of fingers 18 are provided, which areout of vertical line with the corresponding fingers 17 and receive thethread of yarn coming from the roller 12 and guide it to the hookedguide 13.

The upper guide hooks 10 are carried by a longitudinal bar 19, which isadjustable for height by clamps 10 to suit operators of differentheight.

The guide fingers 17 `and 1 8 are carried the condition of bylongitudinal bars 2O and 21, each of Which is adjustable laterally toaccord With the lateral adjustment of the rollers 11 and 12, theadjusting means being clamps 22. Upon release of said clamps and of theclamps 10 each of the carrier bars for the guide hooks and guide fingersmay be adjusted endwise to line up with the Work, the clamp adjustmentbeing then fixed again. The guide hooks 13 and 14 are also each carriedby bars 23 and 24, having clamps 25 and 26 to fix the position thereof,and adjustable endwise in the same manner to line up With the Work.

Each of the rollers 11 and 12 is provided With a brake device beingpreferably a leather or friction brake and numbered 27 and 28, eachbrake having attached thereto a Weight 29, which is detachable andcapable of being substituted by lighter or heavier weights as may berequired.

The slots wherein the journal blocks of the tension adjusting roller 11are movable to vary the tension, are preferably upwardly inclined asshown, whereby the scope of the tension adjustment is made greater, aslight difference in height of this roller as it is adjusted laterallyrelative to the roller 12 making for a considerable difference in thetensioning of the yarn.

1. In a jack Winder for looms, a plurality of yarn cones, a plurality ofbobbin'spindles, means for rotating said spindles all at an even rate ofspeed, and means'engaging the yarn in its passage from the cones to thespindles to evenly tension the yarn as it is Wound upon the spindlesincluding a lower tension roller around which cach thread of yarn islooped, and an upper tension adjusting roller engaging each thread ofyarn. the said, tension roller being adapted to cause the yarn to feedslightly end- Wise of the roller as it passes around the same.

2. In a jack Winder for yarns, a plurality of yarn. cones, a pluralityof bobbin spindles, means for rotating said spindles all at an even rateof speed, and means engaging the yarn in its passages from the cones tothe spindles'to evenly tension the yarn as it is Wound upon the spindlesincluding a tension roller around which each thread of yarn is looped,and a tension adjusting roller engaging each thread of yarn, saidtension roller being adapted to cause the yarn threads to feed slightlyendwise of the roller as they pass around the same, and guiding andsupporting means for the yarn threads.

3.v Ina jack Winder for yarns, a plurality of yarn cones, a plurality ofbobbin spindles, means for rotating said spindles all at an even rate ofspeed, means engaging the yarn in its passage from the cones to thespindles to evenly tension the yarn as it is Wound upon the spindlesincluding a laterally adjustable tension roller around Whlch each threadof yarn is looped, and a laterally adjustable tension-adjusting rollerengaging each thread of yarn, said tension roller being adapted to causethe yarn threads to feed slightly endwise as they pass around the same,endwise and vertically adjustable guide means above the tensionadjusting roller, endwise and laterally adjustable guide means betweenthe tension roller and the tension adjusting roller, and endwise andlaterally adjustable guide means below the tension roller.

4. In a jack Winder for yarns, a plurality' of yarn cones, plurality ofbobbin spindles, means for rotating said spindles all at an even rate ofspeed, andv means engaging the yarn in its passage from the cones to thespindles to evenly tension the yarn as it is Wound upon the spindlesincluding a laterally adjustable tension roller around which each threadof yarn is looped, aud a laterally adjustable tension adjusting rollerengaging each thread of yarn, said tension roller being adapted to causeeach thread of yarn to feed slightly endwise of the roller as it passesaround the saine, adjustable guide and supporting means, and adjustablebrake means for the rollers.

5. In a jack Winder for yarns, a plurality of yarn cones, a plurality ofbobbin spindles, means for rotating said spindles all at an even rate ofspeed, and means engaging the yarny in its passage from the cones to thespindles to evenly tension the yarn it is Wound upon the spindles,including a tension roller around which each thread of yarn is looped,and a tension adjusting roller engaging each thread of yarn, saidrollers being provided each with one or more longitudinal grooves toprovide biting or gripping edges and facilitating separation of the yarnthreads.

6. In a jack Winder for yarns, a plurality of yarn cones, a plurality ofbobbin spindles, means for rotating said spindles all at an even rateofspeed, and means engaging the yarn in its passage from the cones tothe spindles to evenly tension the yarn `as it is Wound upon thespindles including a tension roller around Which 'each thread of yarn islooped.y said roller having a longitudinal inclined groove to provide abiting or gripping edge, to facilitate separation of the threads of yarnand to cause the yarn threads to feed slightly endwise of the roller asis passes around the same.

In testimony whereof I aIliX my signature in presence of two witnesses.

, WILLIAM J. BRENNAN.

Witnesses: i CHARLES B. RUSSELL,

JOHN HAMILTON.

